congregate vs diminish

congregate

adj
  • Collective; assembled; compact. 

verb
  • To come together; to assemble; to meet. 

  • To collect into an assembly or assemblage; to bring into one place, or into a united body. 

diminish

verb
  • To taper. 

  • To disappear gradually. 

  • To take away; to subtract. 

  • To make smaller. 

  • To lessen the authority or dignity of; to put down; to degrade; to abase; to weaken; to nerf (in gaming). 

  • To become less or smaller. 

How often have the words congregate and diminish occurred in a corpus of books? (source: Google Ngram Viewer )